US Bridges

Nfa 0A612 over Dog Branch

Fair

Warren County, Tennessee · 0.5 MI N of SR288 · Structure no. 89SR0010003

Built
1925
100 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,228
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 0A612 over Dog Branch is a concrete continuous culvert carrying Nfa 0A612 over Dog Branch in Warren County, Tennessee. It was built in 1925, so it is 100 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,228 vehicles a day, roughly 3% of them trucks, projected to reach 2,437 by 2041. The structure is 23 ft (7 m) long and 29 ft wide. If it were closed, the detour would be 75.2 mi (121 km).

Location

Open in Google Maps
CarriesNfa 0A612
CrossesDog Branch
Location0.5 MI N of SR288
RouteCounty Highway 0A612
CountyWarren County
StateTennessee
Coordinates35.72135, -85.91357
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,228 (2021)
Projected traffic2,437 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.2 mi (121 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$89,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 0A612 over Dog Branch built?

It was built in 1925, making it 100 years old in 2025.

What condition is Nfa 0A612 over Dog Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does Nfa 0A612 over Dog Branch carry?

About 1,228 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 0A612 over Dog Branch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns Nfa 0A612 over Dog Branch?

It is owned by the County Highway Agency.